SEO for store in Subdirectory

[luca1711]

Hi everyone, I need SEO advice.

I already prestashop in the main domain, because of incompatibility of the theme with the multinegion I created a subfolder in the main directory and I made a new installation to have the second store, I chose this solution more than the subdomain to avoid problems if in the future I wanted to change hosting.

Now my doubt is this, SEO side I have to create a new sitemap from the BO of the new store to be sent to various google etc or all the new pages of the store2 will already be present in the main sitemap? To have a correct indexing of the pages of the new store which is the practice to always follow that there is one? it's the first time I create a second store inside the same site.

Thanks to anyone who intervenes.